MobilePh banking App is a bane/dud. . . one major bank with a red logo forces you to upgrade your mobile dev to support the latest version of their app. Firmware or hardware - I dunno.
Otherwise it won't work.
There is nothing to download on playstore for this "old" phone (for this bnk).
it will still run other banks' apps - just not this one bank.
== one day - you life will be EXCLUDED if you don't have the necessary devices or 4G/5G/6G. soon.